The Best K-Beauty Routine for Dry, Hyperpigmentation Skin in 2026

You can do both at once. Niacinamide, tranexamic acid, and vitamin C are all water-soluble and work well in hydrating serums and moisturizers. Dry skin benefits most when brightening ingredients come in cream or emulsion textures rather than thin, watery serums. The one exception: high-concentration L-ascorbic acid needs a low-pH formula that can feel drying. Vitamin C derivatives like ascorbyl glucoside handle richer formulas better.

They complement each other directly. Hyaluronic acid pulls water into the skin and supports barrier function. Niacinamide also strengthens the barrier by increasing ceramide production. A stronger barrier means faster cell turnover, which speeds spot fading. Apply hyaluronic acid first to damp skin, then layer niacinamide over it. Both tolerate most other actives and have low irritation potential.

Tranexamic acid blocks the signaling pathway from UV exposure that tells your melanocytes (pigment-producing cells) to ramp up melanin output. At 2 to 5 percent, it's one of the gentler brightening actives available. It doesn't peel, doesn't need a low pH, and works in rich cream bases that dry skin actually likes. A 2017 double-blind trial found topical 5 percent tranexamic acid reduced melanin levels comparably to hydroquinone with fewer side effects.

Apply actives before moisturizers. Cleanse, apply any hydrating toner or essence, then your brightening serum (niacinamide, vitamin C, or tranexamic acid), then seal with a moisturizer. In the AM, finish with SPF. In the PM, if you use a retinoid or exfoliating acid, apply that after your brightening serum and before moisturizer. For very dry skin, slugging (a thin layer of an occlusive like petrolatum over your PM routine) won't deactivate the brightening actives underneath.

Both approaches work. Full-face application evens out overall tone and prevents new spots from forming. Spot-treating saves product and makes sense for isolated marks. Most dermatologists recommend full-face use for gentle ingredients like niacinamide and tranexamic acid, since they're mild enough for daily all-over application. Save spot-only treatment for stronger actives like hydroquinone.